NEET Chemistry Biomolecules Class 12 Questions

Which of the following acids is a vitamin?

The secondary structure of protein is stabilised by

Among the following, the essential amino acid is

Which of the following polymer is stored in the liver of animals?

Sucrose (cane sugar) is a disaccharide. One molecule of sucrose on hydrolysis gives .........

Most common types of secondary structures of proteins are

Amino acids generally exist in the form of Zwitter ions. This means they contain

Proteins are found to have two different types of secondary structures viz. α-helix and β-pleated sheet structure. α-helix structure of protein is stabilised by

Starch is composed of two polysaccharides which are

Which of the following is not true about amino acids?

Which of the following statements is not true about glucose?

The three structural formulae A, B and C are given here identify them and select the correct option.

Select the incorrect match.

A nitrogenous base is linked to the pentose sugar through:

Arachidonic acid has

Match Column I with Column II and select the correct option w.r.t. levels of protein structures.

Structural polysaccharide among following is

Match the following columns and select the correct option.

Match the enzymes with their substrate or inhibitor:

How many given character is true for lipid? (i) Lipids are generally water insoluble. (ii) They could be simple fatty acids. (iii) Another simple lipid is glycerol which is trihydroxy propane. (iv) Many lipids have both glycerol and fatty acids. (v) These are also called fats and oils based on melting point. (vi) Fates have lower melting point and hence remain as oil in winters.

Match the following:

Read the following statements on lipids and find out correct set of statements: (A) Lecithin found in the plasma membrane is a glycolipid (B) Saturated fatty acids possess one or more C = C bonds (C) Gingelly oil has lower melting point, hence remains as oil in winter (D) Lipids are generally insoluble in water but soluble in some organic solvent (E) When fatty acid is esterified with glycerol, monoglycerides are formed Choose the correct answer from the options given below:

Glycosidic bond is present in between

Proinsulin differs from mature insulin in

Choose the incorrect statement regarding proteins.

The correct order of chemical composition of living tissues/cells in terms of percentage of the total cellular mass is;

Which is an Example of Aromatic Amino acids

Which one of the following biomolecules is correctly characterised?

Alpha-helix is found in which level of protein structure?

Identify the correct statements about biomolecules.

Which of the following statements are correct regarding amino acids? A. They are substituted methanes. B. Serine is an aromatic amino acid. C. Valine is a neutral amino acid. D. Lysine is an acidic amino acid.

Match List I with List II.

Sugar ‘X’ A. is found in honey. B. is a keto sugar. C. exists in α and β - anomeric forms. D. is laevorotatory. ‘X’ is:

The protein portion of an enzyme is called :

The reagents with which glucose does not react to give the corresponding tests/products are

The INCORRECT statement regarding enzymes is:

The RBC deficiency is deficiency disease of:

Sucrose on hydrolysis gives:

Which of the following is a cationic detergent?

The non-essential amino acid among the following is ______.

Which of the following compounds can form a zwitter ion?

The difference between amylose and amylopectin is

In a protein molecule, various amino acids are linked together by ______.

Which one given below is a non-reducing sugar?

A typical fat molecule is made up of

Which of the following hormones is produced under the conditions of stress which stimulates glycogenolysis in the liver of human beings?

Artificial sweetener which is stable under cold conditions only is

D⁻(+)⁻Glucose reacts with hydroxylamine and yields an oxime. The structure of the oxime would be:

In DNA, the linkages between different nitrogenous bases are